Disclaimer note - WWF - Pakistan

Detailed Ecological Assessment Report 2008 – Keenjhar Lake
The water quality of Bakar Lake in terms of TDS, Phenol and Lead is
suitable for fish development. However, the DO is at the marginal level
and fluctuates around 2.0 mg/l. The water quality of Dongrion and
Patherio Lakes is hazardous for fishery in light of above parameters.
• Pai Forest
The Samano Rahoo Lake is an artificial lake in the project area which,
support the livestock, wild life and fisheries in Pai Forest. This lake
receives fresh water intermittently from the canal supplies. The
samples taken from the lake prior to monsoon indicate acceptable
quality, (in terms of TDS, Phenol and Lead) for fisheries, as reported
by Pescode (1977) and livestock as per FAO guidelines.
In June 2007, before monsoon Samano Rahoo Lake was full, while
after monsoon, surprisingly the lake had less water, there was no flow
from the watercourse. This also indicates that there is no significant
role of rain water. The water which was available in the lake after the
monsoon period is in fact the seepage water coming from the adjacent
agricultural lands. Because of the seepage in the lake, the magnesium
and calcium salts level (of sulphates, chlorides) has increased after
monsoon (sample PF-A3). The turbidity, phenol and other metals,
except the Chromium, also were found high in the lake. The lake is
only surface water available to livestock and wild life of Pai Forest.
The frequent entry of livestock into the lake for drinking and resting
resulted in erosion of lake banks, causing high turbidity. The plant tree
leaves and washing materials (detergents, etc) used by women along
the lake may be the cause of phenol based substances. There is no
industry or visible source of metallic pollution. The inherent Indus
River pollution due to the upstream human activities may be one
cause of lake contamination.
• Keti Shah
The Shah Belo Lake is connected with the Indus river upstream of
Sukkur Barrage and moves through the forest, having high quality of
water for fish, wild life and livestock. This and river Indus samples
show the dissolve oxygen is between 1-2.6 mg/l, which is low , as
normally more than 4 mg/l DO is required for the sustenance of the
fisheries. The values of TDS, Phenol and Lead are within the
acceptable range, as proposed by Pescode
WWF Pakistan – Indus for All Programme Page 157 of 188